Interrupt driven prioritized work queue

Details Interrupt driven prioritized work queue Interrupt driven prioritized work queue

G - Physics

06

F

354/230.82

G06F 13/26 (2006.01)

Patent

CA 1241761

Abstract Interrupt Driven Prioritized Work Queue An interrupt driven digital processing system is disclosed including routines for servicing interrupt requests received from a plurality of interrupt sources. the interrupt servicing routines each interrupt regular processing within the system and perform predetermined work items required to immediately satisfy the received interrupt request. The active servicing routine then identifies and queues individual work items that must be performed to completely satisfy the received interrupt request, but that can be performed at a future time without affecting system performance. Regular processing is then reinstated and the queued work items are executed. By this means, regular processing is interrupted for a minimum amount of time while servicing individual interrupt requests. Also, the work items in queue are prioritized for execution during regular processing in order to optimize the performance of the digital processing system. The disclosed preferred embodiment is a digital communications adapter for organizing communication between a host processor and a plurality of input/output devices.

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